JP2010034959A5 - - Google Patents
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- JP2010034959A5 JP2010034959A5 JP2008196277A JP2008196277A JP2010034959A5 JP 2010034959 A5 JP2010034959 A5 JP 2010034959A5 JP 2008196277 A JP2008196277 A JP 2008196277A JP 2008196277 A JP2008196277 A JP 2008196277A JP 2010034959 A5 JP2010034959 A5 JP 2010034959A5
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- 230000003321 amplification Effects 0.000 claims 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims 9
- 238000003672 processing method Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 2
- 239000000284 extract Substances 0.000 claims 1
Claims (13)
前記入力画像の低周波数成分及び高周波数成分を除去した特定の周波数帯域近傍の成分を取り出した第１の中間画像を生成する中間画像生成手段と、
前記第１の中間画像をもとに第２の中間画像を生成する中間画像処理手段と、
前記入力画像と前記第２の中間画像を加算する第１の加算手段とを有し、
前記中間画像処理手段は、
前記第１の中間画像の画素値を、画素に応じて処理の内容を変化させる非線形処理で処理した非線形処理画像を生成する非線形処理手段を含む
ことを特徴とする画像処理装置。 An image processing apparatus to which an enlarged image obtained by enlarging an original image is input,
An intermediate image generation means for generating a first intermediate image by extracting a specific frequency band near the component to remove low frequency components and high frequency components of the input image,
Intermediate image processing means for generating a second intermediate image based on the first intermediate image;
Possess a first addition means for adding the second intermediate image and the input image,
The intermediate image processing means includes
The image processing apparatus characterized by including a nonlinear processing unit that generates a nonlinear processed image pixel value of the first intermediate image, and treated with a non-linear processing Ru changing the contents of the process according to the pixel.
前記入力画像の高周波数成分のみを取り出した第１の高周波数成分画像を生成する第１の高周波数成分画像生成手段と、
前記第１の高周波数成分画像の低周波数成分のみを取り出す低周波数成分画像生成手段を有する
ことを特徴とする請求項１に記載の画像処理装置。 The intermediate image generating means
First high frequency component image generation means for generating a first high frequency component image obtained by extracting only the high frequency component of the input image;
The image processing apparatus according to claim 1 , further comprising a low-frequency component image generation unit that extracts only a low-frequency component of the first high-frequency component image.
前記非線形処理画像の高周波数成分のみを取り出した第２の高周波数成分画像を生成する第２の高周波数成分画像生成手段をさらに含む
ことを特徴とする請求項１又は２に記載の画像処理装置。 Before Symbol intermediate image processing means,
A second high-frequency component image generating unit configured to generate a second high-frequency component image obtained by extracting only the high-frequency component of the nonlinear processed image ;
The image processing apparatus according to claim 1, wherein the image processing apparatus is an image processing apparatus.
前記第１の中間画像と前記第２の高周波数成分画像を加算する第２の加算手段をさらに有する Second addition means for adding the first intermediate image and the second high-frequency component image is further included.
ことを特徴とする請求項３に記載の画像処理装置。 The image processing apparatus according to claim 3.
前記入力画像の各画素の水平方向近傍に存在する画素を用いて高周波数成分を取り出した第１の水平方向高周波数成分画像を生成する第１の水平方向高周波数成分画像生成手段を有し、
前記低周波数成分画像生成手段は、
前記第１の水平方向高周波数成分画像の低周波数成分のみを取り出した第１の水平方向中間画像を生成する水平方向低周波数成分画像生成手段を有し、
前記第１の中間画像が、
前記第１の水平方向中間画像を含み、
前記非線形処理手段は、
前記第１の水平方向中間画像の各画素値を画素に応じて変化させた増幅率で増幅した水平方向非線形処理画像を生成する水平方向非線形処理手段を有し、
前記第２の高周波数成分画像生成手段は、
前記水平方向非線形処理画像の高周波数成分のみを取り出した第２の水平方向高周波数成分画像を生成する第２の水平方向高周波数成分画像生成手段を有する
ことを特徴とする請求項３又は４に記載の画像処理装置。 The first high frequency component image generation means includes:
Having a first first horizontal high-frequency component image generating means to generate a horizontal high-frequency component image by extracting the high-frequency component by using a pixel existing in the horizontal direction near each pixel of the input image ,
The low frequency component image generation means includes
Have a first first horizontal low-frequency component image generating means to generate a horizontal intermediate image extracting only low frequency components in the horizontal high-frequency component image,
The first intermediate image is
Including the first horizontal intermediate image;
The nonlinear processing means includes:
A horizontal non-linear processing means for generating a horizontal non-linear processed image obtained by amplifying each pixel value of the first horizontal intermediate image with an amplification factor changed according to the pixel;
The second high frequency component image generation means includes:
5. The second horizontal high-frequency component image generation means for generating a second horizontal high-frequency component image obtained by extracting only the high-frequency component of the horizontal non-linearly processed image. 5 . The image processing apparatus described.
前記第１の水平方向中間画像の画素値が水平方向に沿って正から負もしくは負から正へと変化する箇所をゼロクロス点として判定する水平方向ゼロクロス点判定手段と、
前記水平方向ゼロクロス点判定手段の判定結果に応じて前記第１の水平方向中間画像の各画素に対する増幅率を決定する水平方向信号増幅手段を有する
ことを特徴とする請求項５に記載の画像処理装置。 The horizontal non-linear processing means includes:
A horizontal direction zero cross point determination means for determining a point where a pixel value of the first horizontal intermediate image changes from positive to negative or from negative to positive along the horizontal direction as a zero cross point;
6. The image processing according to claim 5 , further comprising a horizontal signal amplification unit that determines an amplification factor for each pixel of the first horizontal intermediate image according to a determination result of the horizontal direction zero cross point determination unit. apparatus.
前記第１の水平方向中間画像の各画素に対する増幅率を、The amplification factor for each pixel of the first horizontal intermediate image,
前記水平方向ゼロクロス点判定手段においてゼロクロス点と判定された位置の前後に位置する画素に対しては１より大きな値とし、それ以外の画素の画素値に対しては１とするA value greater than 1 is set for pixels located before and after the position determined as the zero cross point by the horizontal zero cross point determination means, and 1 is set for pixel values of other pixels.
ことを特徴とする請求項６に記載の画像処理装置。The image processing apparatus according to claim 6.
前記入力画像の各画素の垂直方向近傍に存在する画素を用いて高周波数成分を取り出した第１の垂直方向高周波数成分画像を生成する第１の垂直方向高周波数成分画像生成手段を有し、 First vertical high frequency component image generation means for generating a first vertical high frequency component image obtained by extracting a high frequency component using pixels existing in the vertical direction of each pixel of the input image;
前記低周波数成分画像生成手段は、 The low frequency component image generation means includes
前記第１の垂直方向高周波数成分画像の低周波数成分のみを取り出した第１の垂直方向中間画像を生成する垂直方向低周波数成分画像生成手段を有し、 Vertical low frequency component image generation means for generating a first vertical intermediate image obtained by extracting only the low frequency component of the first vertical high frequency component image;
前記第１の中間画像が、 The first intermediate image is
前記第１の垂直方向中間画像を含み、 Including the first vertical intermediate image;
前記非線形処理手段は、 The nonlinear processing means includes:
前記第１の垂直方向中間画像の各画素値を画素に応じて変化させた増幅率で増幅した垂直方向非線形処理画像を生成する垂直方向非線形処理手段を有し、 Vertical non-linear processing means for generating a vertical non-linear processed image obtained by amplifying each pixel value of the first vertical intermediate image with an amplification factor changed according to the pixel;
前記第２の高周波数成分画像生成手段は、 The second high frequency component image generating means includes:
前記垂直方向非線形処理画像の高周波数成分のみを取り出した第２の垂直方向高周波数成分画像を生成する第２の垂直方向高周波数成分画像生成手段を有する A second vertical high-frequency component image generating unit configured to generate a second vertical high-frequency component image obtained by extracting only the high-frequency component of the vertical nonlinear processed image;
ことを特徴とする請求項３又は４に記載の画像処理装置。 The image processing apparatus according to claim 3, wherein the image processing apparatus is an image processing apparatus.
前記第１の垂直方向中間画像の画素値が垂直方向に沿って正から負もしくは負から正へと変化する箇所をゼロクロス点として判定する垂直方向ゼロクロス点判定手段と、 Vertical zero-cross point determination means for determining a point where the pixel value of the first vertical intermediate image changes from positive to negative or from negative to positive along the vertical direction as a zero-cross point;
前記垂直方向ゼロクロス点判定手段の判定結果に応じて前記第１の垂直方向中間画像の各画素に対する増幅率を決定する垂直方向信号増幅手段とを有する Vertical signal amplifying means for determining an amplification factor for each pixel of the first vertical intermediate image according to a determination result of the vertical zero-cross point determining means.
ことを特徴とする請求項８に記載の画像処理装置。 The image processing apparatus according to claim 8.
前記第１の垂直方向中間画像の各画素に対する増幅率を、The amplification factor for each pixel of the first vertical intermediate image,
前記垂直方向ゼロクロス点判定手段においてゼロクロス点と判定された位置の上下に位置する画素に対しては１より大きな値とし、それ以外の画素の画素値に対しては１とするA value greater than 1 is set for pixels located above and below the position determined as the zero cross point by the vertical zero cross point determination means, and 1 is set for pixel values of other pixels.
ことを特徴とする請求項９に記載の画像処理装置。The image processing apparatus according to claim 9.
前記入力画像の低周波数成分及び高周波数成分を除去した特定の周波数帯域近傍の成分を取り出した第１の中間画像を生成する中間画像生成ステップと、
前記第１の中間画像をもとに第２の中間画像を生成する中間画像処理ステップと、
前記入力画像と前記第２の中間画像を加算する第１の加算ステップ手段とを有し、
前記中間画像処理ステップは、
前記第１の中間画像の画素値を、画素に応じて処理の内容を変化させる非線形処理で処理した非線形処理画像を生成する非線形処理ステップを含む
ことを特徴とする画像処理方法。 An image processing method for processing an enlarged image obtained by enlarging an original image,
An intermediate image generation step of generating a first intermediate image by extracting a specific frequency band near the component to remove low frequency components and high frequency components of the input image,
An intermediate image processing step of generating a second intermediate image based on the first intermediate image;
It possesses a first adding step means for adding the second intermediate image and the input image,
The intermediate image processing step includes
Image processing method characterized by comprising the non-linear processing step that generates a nonlinear processed image pixel value of the first intermediate image, and treated with a non-linear processing Ru changing the contents of the process according to the pixel.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008196277A JP4610642B2 (en) | 2008-07-30 | 2008-07-30 | Image processing apparatus and method, and image display apparatus |
| CN200980130164.3A CN102113307B (en) | 2008-07-30 | 2009-07-15 | Image processing device and method, and image display device |
| US13/056,540 US8498499B2 (en) | 2008-07-30 | 2009-07-15 | Image processing apparatus and method and image display apparatus |
| EP09802651.1A EP2320637B1 (en) | 2008-07-30 | 2009-07-15 | Image processing device and method, and image display device |
| PCT/JP2009/003330 WO2010013401A1 (en) | 2008-07-30 | 2009-07-15 | Image processing device and method, and image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008196277A JP4610642B2 (en) | 2008-07-30 | 2008-07-30 | Image processing apparatus and method, and image display apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010034959A JP2010034959A (en) | 2010-02-12 |
| JP2010034959A5 true JP2010034959A5 (en) | 2010-06-24 |
| JP4610642B2 JP4610642B2 (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2008196277A Active JP4610642B2 (en) | 2008-07-30 | 2008-07-30 | Image processing apparatus and method, and image display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5984480B2 (en) * | 2012-04-25 | 2016-09-06 | 三菱電機株式会社 | Image processing apparatus and method, and image display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05344386A (en) * | 1992-06-09 | 1993-12-24 | Matsushita Electric Ind Co Ltd | Image contour emphasizing device |
| JPH07177386A (en) * | 1993-12-21 | 1995-07-14 | Matsushita Electric Ind Co Ltd | Image control emphasizing device |
| JPH09224186A (en) * | 1995-12-12 | 1997-08-26 | Sony Corp | Video camera and control correcting device |
| US6804393B2 (en) * | 2001-01-02 | 2004-10-12 | Eastman Kodak Company | Method of calculating noise from a digital image utilizing color cross correlation statistics |
| JP2003304506A (en) * | 2002-04-10 | 2003-10-24 | Matsushita Electric Ind Co Ltd | Video signal processing apparatus |
| TWI255138B (en) * | 2005-03-08 | 2006-05-11 | Novatek Microelectronics Corp | Method and apparatus for noise reduction of video signals |
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